Question

Dacă x+y+z=17,atunci calculați:
a)5•x+5•y+5•z=
b)13•x+13•y+13•z+1313
c)882-3•(7•x+7•y+7•z)

Answer 1

a. 5[x+y+z]=5·17=85;
b. 13[x+y+z]+1313=13·17+1313=221+1313=1534;
c. 882-3·7·17=882-21·17=882-357=525;